why "google is not defined " when i load google js api

Question

i follow the api step by step,but can't load successful..

this is my code:

<html> <head> <meta name="viewport" content="initial-scale=1.0, user-scalable=no" /> </head> <body > <script type="text/javascript" src="http://www.google.com/jsapi?autoload=%7B%22modules%22%3A%5B%7B%22name%22%3A%22gdata%22%2C%22version%22%3A%222.x%22%2C%5B%22callback%22%3A%22onLoad%22%2C%22packages%22%3A%5B%22maps%22%5D%5D%7D%5D%7D"></script> <script type="text/javascript"> var service = new google.gdata.maps.MapsService('docs-example'); </script> </body> </html>

the error is :google is not defined

why ??

upedted

i change my code,and it worked,but it fire the errorHandler and then alert "error!!!":

<html> <head> <meta name="viewport" content="initial-scale=1.0, user-scalable=no" /> </head> <body > <script type="text/javascript" src="http://www.google.com/jsapi"></script> <script type="text/javascript"> // Load the latest version of the Google Data JavaScript Client google.load('gdata', '2.x', {packages: ['maps']}); function onGoogleDataLoad() { // Put your code here } // Call function once the client has loaded google.setOnLoadCallback(onGoogleDataLoad); </script> <script type="text/javascript"> var service = new google.gdata.maps.MapsService('docs-example'); listMaps() function listMaps() { var list = document.createElement('ul'); var mapFeedUrl = 'http://maps.google.com/maps/feeds/maps/default/owned'; service.getMapFeed(mapFeedUrl, function(feedRoot) { var feed = feedRoot.feed; var entries = feed.getEntries(); for (var i = 0; i < entries.length; i++) { var entry = entries[i]; var mapTitle = entry.getTitle().getText(); var listItem = document.createElement('li'); var listText = document.createTextNode(mapTitle); listItem.appendChild(listText); list.appendChild(listItem); } document.body.appendChild(list); }, errorHandler) } function errorHandler(){ alert('error!!!') } </script> </body> </html>

why ?

thanks

have you tried this code.google.com/apis/maps/documentation/javascript/basics.html — painotpi
– painotpi, Commented Dec 7, 2011 at 4:58

w00kie · Accepted Answer · 2010-03-25 06:52:04Z

you should put any call to the google stuff inside the onGoogleDataLoad() function to make sure it is not launched before the APIs have finished loading.

function onGoogleDataLoad() { var service = new google.gdata.maps.MapsService('docs-example'); listMaps() }

Tatu Ulmanen · Accepted Answer · 2010-03-25 06:38:13Z

If you check the JS URL with your browser, you get the following result:

var error = new Error("Invalid autoload."); error.toString = function() { return this.message; } throw error;

Meaning, there's something wrong with your URL.

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